I am trying some initial pilot work in the use of unweighting over a treadmill with Parkinsons patients. The idea being the support will provide a better posture while the treadmill stimulates continued gait patterning as promotes all the generalised benefits of "fitness" training, an option that is rarely available to this population. You can see an add for the unweighting machine we use in the clinic on your mailpage or on the physiowork page. Actually the company does a home model but this would be for the wealthy amongst us, not the average Parkinsons patient.